CN214930155U

CN214930155U - Front spiral spring shock absorber for truck cab

Info

Publication number: CN214930155U
Application number: CN202023185913.5U
Authority: CN
Inventors: 施晓玮
Original assignee: Wuxi Qiong Ju Machinery Technology Co ltd
Current assignee: Wuxi Qiong Ju Machinery Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-30
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a leading coil spring bumper shock absorber for truck driver's cabin relates to bumper shock absorber technical field. The utility model discloses a cylinder body, connecting rod, external coil spring and external regulating part, the lower part is fixed with the baffle in the cylinder body, and baffle and cylinder body lower part form the installation cavity, and the baffle top is fixed with interior barrel, and interior barrel separates the cylinder body for working chamber and oil storage chamber. The utility model discloses a actuating mechanism of cavity connecting rod and installation cavity can drive the regulating plate and rotate, thereby can drive different specification second oilhole relative with the oil through hole on the regulating plate, thereby can control the flow and the velocity of flow of bottom valve and piston position oil on the hydraulic shock absorber, thereby can realize the compression damping of hydraulic shock absorber and recover damped adjustable, simultaneously through setting up external regulating part, can follow outside and increase an oil circuit, can change the inside damping of bumper shock absorber through the controllable of oil mass, can promote truck driver's cabin's travelling comfort and stationarity.

Description

Front spiral spring shock absorber for truck cab

Technical Field

The utility model belongs to the technical field of the bumper shock absorber, especially, relate to a leading coil spring bumper shock absorber for truck driver's cabin.

Background

The conventional heavy truck cab shock absorber is formed by serially connecting and combining a spiral spring (spring) and a damper (shock absorber), and is arranged between a cab and a frame, the spring bears the impact force of the cab from the road surface when an automobile runs and isolates the rigid impact between the cab and the frame, the shock absorber generates corresponding hydraulic damping force along with the deformation of the spring, and the mechanical energy generated when the spring works is converted into heat energy to be dissipated, so that the stability and comfort of a driver are obtained.

However, the spiral spring shock absorber used in the existing truck cab does not have the damping adjusting function, so that the comfort and the stability of the truck cab can be influenced, and meanwhile, the good comfort can not be effectively provided for the cab aiming at the running on different roads, so that the shock absorber with the adjustable damping is designed, and the problem needs to be solved by workers in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leading coil spring bumper shock absorber for truck driver's cabin, actuating mechanism through cavity connecting rod and installation cavity can drive the regulating plate and rotate, thereby can drive different specification second on the regulating plate and fall the oilhole relative with the oil through, thereby can control the flow and the velocity of flow of hydraulic shock absorber upper foot valve and piston position oil, thereby can realize the compression damping of hydraulic shock absorber and restore damped adjustable, simultaneously through setting up external regulating part, can follow outside and increase an oil circuit, can change the inside damping of bumper shock absorber through the controllable of oil mass, can promote the travelling comfort and the stationarity of truck driver's cabin.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a front spiral spring shock absorber for a truck cab, which comprises a cylinder body, a connecting rod, an external spiral spring and an external adjusting piece;

a partition plate is fixed at the lower part in the cylinder body, an installation cavity is formed by the partition plate and the lower part of the cylinder body, an inner cylinder body is fixed at the top of the partition plate, and the cylinder body is divided into a working cavity and an oil storage cavity by the inner cylinder body;

a piston body is fixed at one end of the connecting rod positioned in the cylinder body, a bottom valve seat is fixed at the lower part in the working cavity, a plurality of oil ports are formed in the bottom end of the inner cylinder body, and the oil ports are positioned at the lower part of the bottom valve seat;

oil through holes are formed in the opposite sides of the piston body, annular grooves are formed in the piston body, a group of oil through holes are communicated with the annular grooves, and a through hole is formed in the axis of one end of each annular groove;

an adjusting plate is rotatably connected in the annular groove, first oil dropping holes are formed in two sides of the adjusting plate, and a plurality of second oil dropping holes with gradually-reduced inner diameters are sequentially formed in the adjusting plate at positions in the same direction as the two first oil dropping holes;

the structure characteristics of the bottom valve seat are consistent with those of the piston body, the positions of the top and the bottom of the piston body, which are connected with the two oil through holes, are respectively fixed with a flow valve and a recovery valve, and the positions of the top and the bottom of the bottom valve seat, which are connected with the two oil through holes, are respectively fixed with a compensation valve and a compression valve;

the connecting rod is a hollow rod body, the inner side of the bottom end of the connecting rod and the installation cavity are both fixed with a driving mechanism, the output end of the driving mechanism in the connecting rod penetrates through a through hole in the piston body and is fixedly connected with the axis of the adjusting plate, and the output end of the driving mechanism in the installation cavity penetrates through a through hole in the bottom valve seat and is fixedly connected with the axis of the adjusting plate;

the external regulating part comprises an oil pipe, the oil pipe is arranged at the position outside the cylinder body, the two ends of the oil pipe are communicated with the working cavity through the cylinder body and the inner cylinder body, one end of the oil pipe is located at the position on the upper portion of the piston body, the other end of the oil pipe is located at the position between the piston body and the bottom valve seat, a branch pipe is arranged on the oil pipe, one end of the branch pipe is communicated with the oil storage cavity through the cylinder body, and throttle valves are arranged at the two ends of the branch pipe and the oil pipe.

Furthermore, the axial leads of the plurality of second oil falling holes, the group of first oil falling holes and the group of oil passing holes are annularly distributed, and the inner diameter of each first oil falling hole is consistent with that of each oil passing hole.

Furthermore, a top seat is fixed on the circumferential side face of one end, far away from the cylinder body, of the connecting rod, a base is fixed at the bottom end of the cylinder body, the external spiral spring is fixed between the base and the top seat, and the oil pipe is located between the external spiral spring and the cylinder body.

Further, a connecting block is fixed to the top of the top seat, hanging rings are fixed to the outer side of the connecting block and the outer side of the base, and rubber bushings are arranged on the inner sides of the hanging rings.

Furthermore, a wire groove is formed in the connecting block and communicated with the hollow connecting rod, and a wire opening is formed in one side of the mounting cavity.

Furthermore, a protecting sleeve is fixed on the lower portion of the top seat, the bottom end of the protecting sleeve is located on the outer side of the top end of the cylinder body, the outer diameter of the protecting sleeve is larger than that of the cylinder body, and the difference value is within the range of 2-3 mm.

Furthermore, a protective pad is fixed at the upper part in the protective sleeve and is fixed on the peripheral side surface of the connecting rod.

Further, a sealing gasket, an oil seal and a guide block are sequentially fixed on the upper portion in the cylinder body, and the inner sides of the sealing gasket, the oil seal and the guide block are all in contact with the outer side of the connecting rod.

Further, the driving mechanism comprises a motor and a speed reducer, and the output end of the motor is connected with the input end of the speed reducer.

The utility model discloses following beneficial effect has:

the utility model discloses a actuating mechanism of cavity connecting rod and installation cavity can drive the regulating plate and rotate, thereby can drive different specification second oilhole relative with the oil through hole on the regulating plate, thereby can control the flow and the velocity of flow of bottom valve and piston position oil on the hydraulic shock absorber, thereby can realize the compression damping of hydraulic shock absorber and recover damped adjustable, simultaneously through setting up external regulating part, can follow outside increase an oil circuit, can change the inside damping of shock absorber through the controllable of oil mass, can promote the travelling comfort and the stationarity of truck driver's cabin, guarantee that the truck can both obtain fine travelling comfort in different road surfaces traveling process.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a front spiral spring shock absorber for a truck cab according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the driving mechanism and the adjusting plate;

in the drawings, the components represented by the respective reference numerals are listed below:

1-cylinder body, 2-connecting rod, 3-external spiral spring, 4-external regulating piece, 5-piston body, 6-bottom valve seat, 7-driving mechanism, 8-top seat, 9-base, 10-connecting block, 11-lifting ring, 12-line groove, 13-line port, 14-protecting cover, 15-protecting pad, 101-oil storage cavity, 102-partition plate, 103-installation cavity, 104-inner cylinder body, 105-working cavity, 106-oil port, 401-oil pipe, 402-branch pipe, 403-throttling valve, 501-oil through hole, 502-annular groove, 503-through hole, 504-regulating plate, 505-first oil dropping hole, 506-second oil dropping hole, 507-circulating valve, 508-restoring valve and 601-compensating valve, 602-compression valve, 701-motor, 702-reducer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention relates to a front-mounted coil spring shock absorber for truck cab, which comprises a cylinder body 1, a connecting rod 2, an external coil spring 3 and an external adjusting member 4;

a partition plate 102 is fixed at the inner lower part of the cylinder body 1, an installation cavity 103 is formed by the partition plate 102 and the lower part of the cylinder body 1, an inner cylinder body 104 is fixed at the top of the partition plate 102, and the cylinder body 1 is divided into a working cavity 105 and an oil storage cavity 101 by the inner cylinder body 104;

a piston body 5 is fixed at one end of the connecting rod 2 positioned in the cylinder body 1, a bottom valve seat 6 is fixed at the inner lower part of the working cavity 105, a plurality of oil ports 106 are formed at the bottom end of the inner cylinder body 104, and the oil ports 106 are positioned at the lower part of the bottom valve seat 6;

the opposite sides of the piston body 5 are provided with oil through holes 501, an annular groove 502 is formed in the piston body 5, a group of oil through holes 501 are communicated with the annular groove 502, and the axis of one end of the annular groove 502 is provided with a through hole 503;

an adjusting plate 504 is rotatably connected in the annular groove 502, first oil dropping holes 505 are formed in both sides of the adjusting plate 504, and a plurality of second oil dropping holes 506 with gradually reduced inner diameters are sequentially formed in the adjusting plate 504 at positions in the same direction as the two first oil dropping holes 505;

the structural characteristics of the bottom valve seat 6 are consistent with those of the piston body 5, the flow valve 507 and the recovery valve 508 are respectively fixed at the top and the bottom of the piston body 5 and the positions connected with the two oil through holes 501, and the compensation valve 601 and the compression valve 602 are respectively fixed at the top and the bottom of the bottom valve seat 6 and the positions connected with the two oil through holes 501;

the connecting rod 2 is a hollow rod body, the inner side of the bottom end of the connecting rod 2 and the installation cavity 103 are both fixed with a driving mechanism 7, the output end of the driving mechanism 7 in the connecting rod 2 penetrates through a through hole 503 on the piston body 5 and is fixedly connected with the axle center of the adjusting plate 504, and the output end of the driving mechanism 7 in the installation cavity 103 penetrates through the through hole 503 on the bottom valve seat 6 and is fixedly connected with the axle center of the adjusting plate 504;

the external adjusting part 4 comprises an oil pipe 401, the oil pipe 401 is arranged at the position outside the cylinder body 1, two ends of the oil pipe 401 penetrate through the cylinder body 1 and the inner cylinder body 104 and are communicated with the working cavity 105, one end of the oil pipe 401 is located at the position of the upper part of the piston body 5, the other end of the oil pipe 401 is located at the position between the piston body 5 and the bottom valve seat 6, a branch pipe 402 is arranged on the oil pipe 401, one end of the branch pipe 402 penetrates through the cylinder body 1 and is communicated with the oil storage cavity 101, and two ends of the branch pipe 402 and two ends of the oil pipe 401 are provided with throttle valves 403.

As shown in FIG. 3, the plurality of second oil dropping holes 506, the group of first oil dropping holes 505 and the group of oil passing holes 501 are annularly distributed on the axial line, and the inner diameter of the first oil dropping holes 505 is the same as the inner diameter of the oil passing holes 501.

As shown in FIG. 1, a top seat 8 is fixed on the peripheral side surface of one end of the connecting rod 2, which is far away from the cylinder body 1, a base 9 is fixed at the bottom end of the cylinder body 1, the external coil spring 3 is fixed between the base 9 and the top seat 8, and the oil pipe 401 is located between the external coil spring 3 and the cylinder body 1.

As shown in figure 1, a connecting block 10 is fixed on the top of the top base 8, hanging rings 11 are fixed on the outer sides of the connecting block 10 and the base 9, and rubber bushings are arranged on the inner sides of the hanging rings 11.

As shown in FIG. 1, a wire slot 12 is formed in the connecting block 10, the wire slot 12 is communicated with the hollow connecting rod 2, and a wire opening 13 is formed in one side of the mounting cavity 103.

As shown in figure 1, a protective sleeve 14 is fixed on the lower portion of the top seat 8, the bottom end of the protective sleeve 14 is located at the position outside the top end of the cylinder body 1, the outer diameter of the protective sleeve 14 is larger than that of the cylinder body 1, and the difference is in the range of 2-3 mm.

As shown in figure 1, a protective pad 15 is fixed on the upper part in the protective sleeve 14, and the protective pad 15 is fixed on the peripheral side surface of the connecting rod 2.

Wherein, the upper portion is fixed with seal packing ring, oil blanket and guide block in proper order in cylinder body 1, and seal packing ring, oil blanket and guide block inboard all contact with the connecting rod 2 outside.

As shown in fig. 3, the driving mechanism 7 includes a motor 701 and a speed reducer 702, and an output end of the motor 701 is connected to an input end of the speed reducer 702.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a leading coil spring bumper shock absorber for truck driver's cabin, includes cylinder body (1), connecting rod (2) and external coil spring (3), its characterized in that: the device also comprises an external adjusting piece (4);

a partition plate (102) is fixed at the inner lower part of the cylinder body (1), an installation cavity (103) is formed by the partition plate (102) and the lower part of the cylinder body (1), an inner cylinder body (104) is fixed at the top of the partition plate (102), and the cylinder body (1) is divided into a working cavity (105) and an oil storage cavity (101) by the inner cylinder body (104);

a piston body (5) is fixed at one end of the connecting rod (2) positioned in the cylinder body (1), a bottom valve seat (6) is fixed at the inner lower part of the working cavity (105), a plurality of oil ports (106) are formed in the bottom end of the inner cylinder body (104), and the oil ports (106) are positioned at the lower part of the bottom valve seat (6);

oil through holes (501) are formed in the opposite sides of the piston body (5), an annular groove (502) is formed in the piston body (5), a group of oil through holes (501) are communicated with the annular groove (502), and a through hole (503) is formed in the axis of one end of the annular groove (502);

an adjusting plate (504) is rotatably connected in the annular groove (502), first oil dropping holes (505) are formed in two sides of the adjusting plate (504), and a plurality of second oil dropping holes (506) with gradually reduced inner diameters are sequentially formed in the adjusting plate (504) and are positioned in the same direction of the two first oil dropping holes (505);

the structural characteristics of the bottom valve seat (6) are consistent with those of the piston body (5), a flow valve (507) and a recovery valve (508) are respectively fixed at the positions of the top and the bottom of the piston body (5) and connected with the two oil through holes (501), and a compensation valve (601) and a compression valve (602) are respectively fixed at the positions of the top and the bottom of the bottom valve seat (6) and connected with the two oil through holes (501);

the connecting rod (2) is a hollow rod body, driving mechanisms (7) are fixed on the inner side of the bottom end of the connecting rod (2) and in the mounting cavity (103), the output end of each driving mechanism (7) in the connecting rod (2) penetrates through a through hole (503) in the piston body (5) and is fixedly connected with the axis of the adjusting plate (504), and the output end of each driving mechanism (7) in the mounting cavity (103) penetrates through the through hole (503) in the bottom valve seat (6) and is fixedly connected with the axis of the adjusting plate (504);

external regulating part (4) include oil pipe (401), oil pipe (401) set up the position in cylinder body (1) outside, cylinder body (1) and interior barrel (104) are all run through at oil pipe (401) both ends and communicate with working chamber (105), oil pipe (401) one end is located the position on piston body (5) upper portion, oil pipe (401) other end is located the position between piston body (5) and bottom valve seat (6), be equipped with branch pipe (402) on oil pipe (401), branch pipe (402) one end is run through cylinder body (1) and is communicate with oil storage chamber (101), branch pipe (402) and oil pipe (401) both ends all are equipped with choke valve (403).

2. The front spiral spring shock absorber for the truck cab as claimed in claim 1, wherein the axial lines of a plurality of the second oil dropping holes (506), a group of the first oil dropping holes (505) and a group of the oil passing holes (501) are distributed annularly, and the inner diameter of the first oil dropping holes (505) is consistent with the inner diameter of the oil passing holes (501).

3. The front spiral spring shock absorber for the truck cab as claimed in claim 1, wherein a top seat (8) is fixed on the peripheral side of one end of the connecting rod (2) far away from the cylinder body (1), a base (9) is fixed at the bottom end of the cylinder body (1), the external spiral spring (3) is fixed between the base (9) and the top seat (8), and the oil pipe (401) is located at a position between the external spiral spring (3) and the cylinder body (1).

4. The front spiral spring shock absorber for the truck cab as claimed in claim 3, wherein a connecting block (10) is fixed on the top of the top seat (8), a hanging ring (11) is fixed on the outer side of the connecting block (10) and the outer side of the base (9), and a rubber bushing is arranged on the inner side of the hanging ring (11).

5. The front spiral spring shock absorber for the truck cab is characterized in that a wire groove (12) is formed in the connecting block (10), the wire groove (12) is communicated with the hollow connecting rod (2), and a wire opening (13) is formed in one side of the mounting cavity (103).

6. The front spiral spring shock absorber for the truck cab as claimed in claim 3, wherein a protective sleeve (14) is fixed to the lower portion of the top seat (8), the bottom end of the protective sleeve (14) is located at a position outside the top end of the cylinder body (1), and the outer diameter of the protective sleeve (14) is larger than that of the cylinder body (1) by a difference of 2-3 mm.

7. Front spiral spring shock absorber for truck cab according to claim 6, characterized in that a protective pad (15) is fixed to the inner upper part of the shield (14), and the protective pad (15) is fixed to the peripheral side of the connecting rod (2).

8. The front spiral spring shock absorber for the truck cab as claimed in claim 1, wherein a seal washer, an oil seal and a guide block are sequentially fixed to the inner upper portion of the cylinder body (1), and the inner sides of the seal washer, the oil seal and the guide block are in contact with the outer side of the connecting rod (2).

9. Front-mounted coil spring shock absorber for truck cabs according to claim 1, characterized in that said drive mechanism (7) comprises a motor (701) and a reduction gear (702), the output of said motor (701) being connected to the input of said reduction gear (702).